| Author | Titles | 1.
| Galfetti de Gili, Mariuccia | 1 | 2.
| Galfetti, Gustavo Gili | 2 | 3.
| Galfetti, Mariuccia | 3 | 4.
| Galgano, Francesco | 1 | 5.
| Galhano, Fernando | 1 | 6.
| Galhano, Fernando 1904-1995 | 27 | 7.
| Galhano, Fernando B. | 1 | 8.
| Galhardo, António Rodrigues | 11 | 9.
| Galhardo, Fernando | 1 | 10.
| Galhardo, João | 1 |
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